List of Hot 100 number-one singles of 2017 (Japan)
# List of Hot 100 number-one singles of 2017 (Japan)

The following is a list of number-one singles on the Billboard Japan Hot 100 chart in 2017. Koi successfully reached Japan's Billboard Year-End Hot 100 singles of 2017, by reaching number-one for 11 non-consecutive weeks.

## Chart history

| Issue date | Song | Artist(s) |
| - | - | - |
| January 2 | "Koi" | Gen Hoshino |
| January 9 | "Koi" | Gen Hoshino |
| January 16 | "Koi" | Gen Hoshino |
| January 23 | "Koi" | Gen Hoshino |
| January 30 | "Koi" | Gen Hoshino |
| February 6 | "Nagurigaki Beat" | Kanjani Eight |
| February 13 | "Koi" | Gen Hoshino |
| February 20 | "Emma" | NEWS |
| February 27 | "Bagutte Iijan" | HKT48 |
| March 13 | "Tonight" | Kis-My-Ft2 |
| March 20 | "Happy" | Sandaime J Soul Brothers from Exile Tribe |
| March 27 | "Shoot Sign" | AKB48 |
| April 3 | "Influencer" | Nogizaka46 |
| April 10 | "Rock tha Town" | Sexy Zone |
| April 17 | "Fukyōwaon" | Keyakizaka46 |
| April 24 | "Seishun Dokei" | NGT48 |
| May 1 | "I'll Be There" | Arashi |
| May 8 | "Chō Nebagiba Dance" | Bullet Train |
| May 15 | "Colors" | V6 |
| May 22 | "Blood Sweat & Tears" | BTS |
| May 29 | "Senaka Goshi no Chance" | Kame to YamaP |
| June 5 | "My Swagger" | Got7 |
| June 12 | "Negaigoto no Mochigusare" | AKB48 |
| June 19 | "Pick It Up" | Kis-My-Ft2 |
| June 26 | "Seimei" | B'z |
| July 3 | "Peace Sign" | Kenshi Yonezu |
| July 10 | "Tsunagu" | Arashi |
| July 17 | "Precious Girl" | Hey! Say! JUMP |
| July 24 | "The Red Light" | KinKi Kids |
| July 31 | "Igai ni Mango" | SKE48 |
| August 7 | "Himawari" | Mr. Children |
| August 14 | "Kiss wa Matsu Shika Nai no Deshō ka?" | HKT48 |
| August 21 | "Nigemizu" | Nogizaka46 |
| August 28 | "Family Song" | Gen Hoshino |
| September 4 | "Uchiage Hanabi" | Daoko with Kenshi Yonezu |
| September 11 | "#sukinanda" | AKB48 |
| September 18 | "Kiseki no Hito" | Kanjani Eight |
| September 25 | "Seiiki" | Masaharu Fukuyama |
| October 2 | "Uchiage Hanabi" | Daoko with Kenshi Yonezu |
| October 9 | "Shōri no Gaika" | Tokendanshi Formation of Mihotose |
| October 16 | "Jama Shinaide Here We Go!" | Morning Musume '17 |
| October 23 | "Itsuka Dekiru Kara Kyou Dekiru" | Nogizaka46 |
| October 30 | "One More Time" | Twice |
| November 6 | "Kaze ni Fukarete mo" | Keyakizaka46 |
| November 13 | "Kaze ni Fukarete mo" | Keyakizaka46 |
| November 27 | "Oto Seyo" | Kanjani Eight |
| December 4 | "11 Gatsu no Anklet" | AKB48 |
| December 11 | "Akai Kajitsu" | Kis-My-Ft2 |
| December 18 | "Mic Drop" | BTS |
| December 25 | "J.S.B. Happiness" | Sandaime J Soul Brothers from Exile Tribe |
